Prepare the aubergine: remove the skin with a knife, chop into cubes and put into a bowl with salt. Let it “sweat” for 20-30mins. Squeeze the excess water or pat dry with kitchen roll: this tip will remove some of the bitterness from the aubergine (when I don’t have much time I would skip this step ..but they do taste better following these instructions)
In a pan add a drizzle of oil and the onion. Once the onion is cooked add the aubergine and cook until it chances colour.
Add the tuna and cook (when they go completely white on all sides it should be ready). Don’t overcook or they will be very dry).
Add cherry tomatoes and olives, cook for ~1 minute.
Serve with a drizzle of oil, salt, pepper and chopped parsley.